.wrap {
    width: 600px;
    margin: 0px auto;

}

.menu {
    width: 600px;
    height: 30px;
    background: cornflowerblue;
    position: sticky;
    top: 0px;
}

.menu ul li {
    float: left;
    list-style-type: none;
    padding: 0 40px;
}

.content ul li img:hover {
    transform: scale(1.2);
    /*当鼠标移动到图片上时实现放大功能*/
}

.content ul li {
    height: 100px;
    overflow: hidden;
    border-bottom: 1px solid lavender;
    background: white;
    list-style-type: none;
    transition-duration: 0.5s;
    margin: 10px 0px 5px 0;

}

.content ul li:hover {
    background-color: lavender;
    transition-duration: 0.5s;
}

.content .left {
    overflow: hidden;
    /*隐藏溢出图片内容*/
    transition-duration: 0.5s;
    width: 140px;
    height: 80px;
    /*background: green;*/
    float: left;
    margin-right: 20px;
}

.content .right {
    width: 400px;
    float: left;
    /*background: pink;*/
}

.right_top {
    height: 60px;
}

.right_bottom {
    margin_top: 50px;
}

.right_bottom_left span {
    color: darkgray;
    font-size: 12px;
}